zlangb zlange zlangt zlanhb zlanhe zlanhp zlanht zlansb zlansp zlansy zlantr

zlanht() double zlanht ( char  norm, int  n, double  d[], doublecomplex  e[]  ) One norm, Frobenius norm, infinity norm, or largest absolute value of any element of a Hermitian tridiagonal matrix Purpose This routine returns the value of the one norm, the Frobenius norm, the infinity norm, or the largest absolute value of any element of a Hermitian tridiagonal matrix A. Returns max(abs(Aij)) when norm = 'M', norm1(A) when norm = '1' or 'O', normI(A) when norm = 'I', or normF(A) when norm = 'F' or 'E' where norm1 denotes the one norm of a matrix (maximum column sum), normI denotes the infinity norm of a matrix (maximum row sum) and normF denotes the Frobenius norm of a matrix (square root of sum of squares). Note that max(abs(Aij)) is not a consistent matrix norm. Parameters [in] norm Specifies the value to be returned by zlanht as described above. Note that normI(A) = norm1(A) since A is Hermitian. [in] n Order of the matrix A. (n >= 0) (If n = 0, returns 0) [in] d[] Array d[ld] (ld >= n) Diagonal elements of Hermitian tridiagonal matrix A. [in] e[] Array e[le] (le >= n - 1) Sub-diagonal or super-diagonal elements of Hermitian tridiagonal matrix A. Reference LAPACK